Hi,

I have the following problem.
My Application uses a H2 database (1.3.171) stored to the hardisk.
I am running a full outer join (implemented by RIGHT OUTER, UNION , LEFT 
OUTER) between of 2 tables (30 columns each, 1.1 million records each).

On my Windows 7 Test machine, the join completes in about 15 minutes, but 
on another Windows XP (NTFS file system) machine it takes hours to 
complete.
I watched the CPU usage of my application on both systems and I noticed 
that it uses one complete core during the whole time of the join on my 
Windows 7 Machine. On Windows XP, things seem to be different. 
Shortly after starting the join, the CPU usage behaves like on Windows 7. 
but after some time (The database has grown to approx. 2 GB on harddisk), 
the CPU usage reduces and oscillates at a quite low amount.

I tested this on several Windows XP machines and the results always seem 
to be the same.

Is there anything known about this problem (reason, workaround, fix)?

Thanks in advance and kind regards,


Christoff Schmitz

F I N A R I S
Financial Software Partner GmbH
Sömmerringstrasse 23
60322 Frankfurt am Main

Fon:      +49 (0)69  / 254 98 - 24
Mobile: +49 (0)176 / 206 34 186
Fax:       +49 (0)69  / 254 98 - 50
eMail:    mailto:[email protected]
www:      http://www.finaris.de und http://www.rapidrep.com

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